不同类型解磷剂对施入磷矿粉土壤有效磷含量的影响  

Effect of Different Types of Phosphorus Dissolving Agent on Content of Available Phosphorus in Soil Applied Phosphate Rock

作　　者：薛亚男 万亚珍[1] 梅丹丹[1] 付文杰 张文辉[1] XUE Ya-nan;WAN Ya-zhen;MEI Dan-dan;FU Wen-jie;ZHANG Wen-hui(School of Chemical Engineering,Zhengzhou University,Henan Zhengzhou 450001,China)

机构地区：[1]郑州大学化工学院,河南郑州450001

出　　处：《西南农业学报》2021年第5期1029-1032,共4页Southwest China Journal of Agricultural Sciences

基　　金：2018年河南省科技创新杰出人才专项(184200510022)。

摘　　要：【目的】研究施用不同解磷剂对土壤中难溶性磷的解磷效果,以提高难溶性磷的利用率。【方法】采用室内土培实验法,研究不同解磷剂对石灰性土壤难溶性磷的活化效果。【结果】γ-聚谷氨酸处理可提高土壤有效磷含量,磷矿粉和γ-聚谷氨酸处理土壤中有效磷含量与对照(只用磷矿粉处理)相比最高净增量达到60.10%。【结论】γ-聚谷氨酸能促进土壤中的难溶性磷向有效磷转化。【Objective】The present paper aimed to study phosphate-solubilizing effect of different phosphorus-releasing agents on insoluble phosphate to improve the utilization of the insoluble phosphate.【Method】Through soil cultivating experiments in laboratory,we studied the activation effect on insoluble phosphate of phosphorus-releasing agents in calcareous soil.【Result】r-polyglutamic treatment could promote available phosphorus content in soil,and when the treatment of phosphate rock withγ-polyglutamic compared with the contrast(only treatment with phosphate rock),the highest net increment of available phosphorus reached 60%.【Conclusion】r-polyglutamic can improve transformation from insoluble phosphate to available phosphate.

关 键 词：难溶性磷 石灰性土壤 有效磷 Γ-聚谷氨酸 

分 类 号：S153.6[农业科学—土壤学]